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<p><strong>Reference</strong> &nbsp;  <a class='wikilink' href='index.html'>Language</a> (<a class='wikilink' href='Extended.html'>extended</a>) | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='selflink' href='Comparison.html'>Comparison</a> | <a class='wikilink' href='Board.html'>Board</a>
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<p class='vspace'></p><h2>Arduino/Processing Language Comparison</h2>
<p>The Arduino language (based on Wiring) is implemented in C/C++, and therefore has some differences from the Processing language, which is based on Java.
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<p class='vspace'></p><h3>Arrays</h3>
<table  width='75%' cellspacing='0' cellpadding='5'><tr><td  width='50%' bgcolor='#999999' valign='top'> <em>Arduino</em>
</td><td  width='50%' bgcolor='#CCCCCC' valign='top'> <em>Processing</em>
</td></tr><tr><td  valign='top'> int bar[8]; <br clear='all' /> bar[0] = 1;
</td><td  valign='top'> int[] bar = new int[8]; <br clear='all' /> bar[0] = 1;
</td></tr><tr><td  bgcolor='#999999' valign='top'> int foo[] = { 0, 1, 2 };
</td><td   bgcolor='#CCCCCC' valign='top'> int foo[] = { 0, 1, 2 }; <br clear='all' /> <em>or</em> <br clear='all' /> int[] foo = { 0, 1, 2 };
</td></tr></table>
<p class='vspace'></p><h3>Loops</h3>
<table  width='75%' cellspacing='0' cellpadding='5'><tr><td  width='50%' bgcolor='#999999' valign='top'> <em>Arduino</em>
</td><td  width='50%' bgcolor='#CCCCCC' valign='top'> <em>Processing</em>
</td></tr><tr><td  valign='top'> int i; <br clear='all' /> for (i = 0; i &lt; 5; i++) {  ... }
</td><td  valign='top'> for (int i = 0; i &lt; 5; i++) { ... }
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<p class='vspace'></p><h3>Printing</h3>
<table  width='75%' cellspacing='0' cellpadding='5'><tr><td  width='50%' bgcolor='#999999' valign='top'> <em>Arduino</em>
</td><td  width='50%' bgcolor='#CCCCCC' valign='top'> <em>Processing</em>
</td></tr><tr><td  valign='top'> Serial.println("hello world");
</td><td  valign='top'> println("hello world");
</td></tr><tr><td  bgcolor='#999999' valign='top'> int i = 5; <br clear='all' /> Serial.println(i); 
</td><td  bgcolor='#CCCCCC' valign='top'> int i = 5; <br clear='all' /> println(i);
</td></tr><tr><td  valign='top'> int i = 5; <br clear='all' /> Serial.print("i = "); <br clear='all' /> Serial.print(i); <br clear='all' /> Serial.println();
</td><td  valign='top'> int i = 5; <br clear='all' /> println("i = " + i);
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<p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>.  Code samples in the reference are released into the public domain.
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